EP 4002666 A1 20220525 - POWER SUPPLY CIRCUIT
Title (en)
POWER SUPPLY CIRCUIT
Title (de)
STROMVERSORGUNGSSCHALTUNG
Title (fr)
CIRCUIT D'ALIMENTATION ÉLECTRIQUE
Publication
Application
Priority
TW 109141182 A 20201124
Abstract (en)
A power supply circuit includes a first regulator and a second regulator. The first regulator is configured to generate a first output signal according to an input signal. A voltage value of the first output signal decreases according to the input signal and a first voltage threshold value at a power-off stage. The second regulator is configured to be enabled according to the first output signal to generate a second output signal according to the input signal. A voltage value of the second output signal decreases according to the input signal and a second voltage threshold value at the power-off stage. The second voltage threshold value is greater than the first voltage threshold value.
IPC 8 full level
H02M 1/36 (2007.01); G06F 1/26 (2006.01); H02M 1/00 (2006.01)
CPC (source: EP US)
G06F 1/26 (2013.01 - EP); H02M 1/0067 (2021.05 - US); H02M 1/007 (2021.05 - EP); H02M 1/36 (2013.01 - EP); H02M 3/158 (2013.01 - US)
Citation (search report)
- [XI] WO 9838727 A2 19980903 - NOKIA TELECOMMUNICATIONS OY [FI], et al
- [A] WO 02099948 A1 20021212 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [A] US 2010201200 A1 20100812 - HORI YUJI [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4002666 A1 20220525; TW 202221459 A 20220601; TW I756936 B 20220301; US 11764676 B2 20230919; US 2022166316 A1 20220526
DOCDB simple family (application)
EP 21185105 A 20210712; TW 109141182 A 20201124; US 202117358115 A 20210625